1998 MY9

1998MY9, 1999 UR42, 1999UR42, 40080, J98M09Y, J99U42R

All data for this body: [vot]

MPC data
Name (number) 1998 MY9 (40080)
a 2.79263
e 0.14769
i / sin(i) 16.7251 / 0.28778
q 2.38019
Q 3.20508
ω 149.6312
Node 228.2952
m 49.1093
n 0.2112
Epoch 2460200.5
nobs 3052
nopp 21
Years observed 1998-2023
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Watsonia (729)
 
ap 2.794
ep 0.122
sin(ip) 0.297
Value Standard error
G 0.150
H 13.990
Mass
D 7.51 0.183
pV 0.114 0.0193
Rotational Period 14.243
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
729 Watsonia 537 Watsonia Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7939 0.1222 0.2966 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.51 0.183 0.183 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.114 0.0193 0.0193 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.99 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.22 Pal 2020ApJS..247...26P Lightcurve
14.24 Waszczak 2015AJ....150...75W Lightcurve